From: Robert Girault <r@dev.null>
To: help-gnu-emacs@gnu.org
Subject: Re: re-search-forward hangs
Date: Mon, 30 Jul 2018 16:35:38 -0300 [thread overview]
Message-ID: <86va8w5xeu.fsf@dev.null> (raw)
In-Reply-To: mailman.4430.1532978809.1292.help-gnu-emacs@gnu.org
Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
> On 30.07.2018 16:33, Eli Zaretskii wrote:
>>> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
>>> Date: Mon, 30 Jul 2018 14:24:06 +0200
>>>
>>> (while (re-search-forward "" nil t 1))
>>>
>>> Emacs hangs.
>>>
>>> Same with plain
>>>
>>> (while (search-forward "" nil t 1))
>>>
>>> Expect it terminating.
>>>
>>> Are there reasons for this?
>>
>> Why did you expect it to terminate?
>
> Expect a call of search-forward from EOB not being successful.
I see. But searching for the empty string seems to be an always
successful operation as long as you have a string. The empty string is
before or after any character in a string, so I would expect it to be
always found by {re-}search-forward.
next prev parent reply other threads:[~2018-07-30 19:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-30 12:24 re-search-forward hangs Andreas Röhler
2018-07-30 14:33 ` Eli Zaretskii
2018-07-30 19:29 ` Andreas Röhler
[not found] ` <mailman.4430.1532978809.1292.help-gnu-emacs@gnu.org>
2018-07-30 19:35 ` Robert Girault [this message]
2018-07-30 20:15 ` Andreas Röhler
2018-07-30 17:53 ` Stefan Monnier
[not found] <mailman.4412.1532953259.1292.help-gnu-emacs@gnu.org>
2018-07-30 13:22 ` Robert Girault
2018-07-30 14:36 ` Ben Bacarisse
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=86va8w5xeu.fsf@dev.null \
--to=r@dev.null \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).